    <SEC-DOCUMENT>0001193125-18-347055-index.html : 20181211
    <SEC-HEADER>0001193125-18-347055.hdr.sgml : 20181211
    <ACCEPTANCE-DATETIME>20181211171110
    ACCESSION NUMBER:		0001193125-18-347055
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		9
    CONFORMED PERIOD OF REPORT:	20181205
    ITEM INFORMATION:		Entry into a Material Definitive Agreement
    ITEM INFORMATION:		Termination of a Material Definitive Agreement
    ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20181211
    DATE AS OF CHANGE:		20181211

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			WATSCO INC
    		CENTRAL INDEX KEY:			0000105016
    		STANDARD INDUSTRIAL CLASSIFICATION:	WHOLESALE-HARDWARE & PLUMBING & HEATING EQUIPMENT & SUPPLIES [5070]
    		IRS NUMBER:				590778222
    		STATE OF INCORPORATION:			FL
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-05581
    		FILM NUMBER:		181229437

    	BUSINESS ADDRESS:
    		STREET 1:		2665 S BAYSHORE DR
    		STREET 2:		STE 901
    		CITY:			COCONUT GROVE
    		STATE:			FL
    		ZIP:			33133
    		BUSINESS PHONE:		305-714-4100

    	MAIL ADDRESS:
    		STREET 1:		2665 SOUTH BAYSHORE DR, STE 901
    		CITY:			COCONUT GROVE
    		STATE:			FL
    		ZIP:			33133
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>d638384d8k.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: d638384d8k.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-10.1
    <SEQUENCE>2
    <FILENAME>d638384dex101.htm
    <DESCRIPTION>EX-10.1
    <TEXT>
    Document 2 - file: d638384dex101.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g638384dsp177.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g638384dsp177.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g638384dsp178.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g638384dsp178.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g638384dsp179.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g638384dsp179.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g638384dsp180.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g638384dsp180.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g638384dsp181.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g638384dsp181.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g638384dsp182.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g638384dsp182.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g638384g14o90.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g638384g14o90.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>